Optimized TNT
by Charlie214
Optimized TNT, a Fabric server mod by Charlie214, changes how large TNT explosions are calculated and batched so that many blocks are processed together.
What it does
The mod uses math to speed up large TNT explosions. It batches the blocks that a blast affects and processes them together, instead of handling each block on its own. The author reports an 84.6% lower peak MSPT during tests, though those figures come from the author's own test setup and are not independently verified.
Entity lag from explosions is reduced by drop aggregation, which groups the item drops produced by blocks broken in a large blast. Explosion power falls slightly as the number of TNT blocks grows, which keeps chain reactions from becoming unbounded. The mod is Server-side only, so only the server needs to run it, and players join without installing anything. Optimized TNT is built for Fabric and targets 1.20.1 alone, with the latest file 1.0.0 for 1.20.1 published in the beta channel.
Key features
Batched block processing
Blocks affected by a large explosion are grouped and handled together rather than one at a time.
Drop aggregation
Item drops from many broken blocks are combined, which reduces the number of entities a blast creates.
Scaled explosion power
The power of each explosion drops slightly as the quantity of TNT in a chain grows.
Profile page with tests
The mod's profile page lists more detailed data and test results that the author compares with other mods.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Servers with TNT chain reactions
Servers where players set off big TNT setups can use the mod to keep tick times lower during blasts.
Modpacks with explosions
Modpack builders who want heavy explosions without large entity lag can add the mod on the server.
Who it’s for: Server owners running Fabric on 1.20.1 who see tick lag from large TNT explosions, and modpack authors who include TNT-heavy content.
How it compares
Creeper's Keep Items is a Fabric server-side mod for 1.20 – 1.20.1, released under the CC0 1.0 Universal license and not open source, and it changes creeper explosion drops rather than TNT. TNTQueue is an open source Fabric server mod under the Mozilla Public License 2.0 for 1.21 – 1.21.10, so it targets newer versions than Optimized TNT. Tnt Limiter is a Fabric client-side mod for 1.19 – 26.1 under All rights reserved, so it runs on the player's side instead of the server.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Optimized TNT | Fabric | 1.20.1 | Server-side only | 2026-06-19 |
| TNTQueue | Fabric | 1.21 – 1.21.10 | Server-side only | 2025-12-21 |
| Tnt Limiter | Fabric | 1.19 – 26.1 | Client-side only | 2025-12-20 |
Questions
Does Optimized TNT need to be installed on the client?
Which loader and version does Optimized TNT support?
Is Optimized TNT licensed openly?
In the catalog
Optimized TNT is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 34,764 mods support Minecraft 1.20.1.
More from Charlie214
Similar mods
What the author says
Optimizes TNT by batching blocks together when exploding large amounts of TNT. This mod also changes the tile drop rates of blocks affected by large explosions, reducing entity lag. TNT explosion power may decrease slightly with larger quantities of TNT.
Official listing
- Modrinth page
- modrinth.com/mod/optimized-tnt
- Owner
- Charlie214
- Published
- 2026-06-18
- Updated on Modrinth
- 2026-06-19
- Facts verified
- 2026-10-15